[SOLVED] Replace content of one column to another if match found
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I assumed the file containing the transaction IDs (that is the patterns to look for) is "transaction_ids". If you put the suggested code in a file, e.g. "test.awk" you can run it passing the file with transaction details as argument:
awk -f test.awk transaction_details_file
In alternative you can add a sha-bang at the very first line of the code:
make it executable and run as
Finally, if you want to insert the awk code in a shell script or run it directly on the command line, you can do:
FS = OFS = ","
while ( getline < "transaction_ids" > 0 )
if ( $1 in _ )
$18 = $16